html,body{
    min-height: 800px;
}
// 全局样式
@space_10px: 10px;
@space_full: 100%;

@transparent: transparent;
@english_word_spacing: 4px;

@text_color_2: rgb(148,154,168);
@border_color_2: rgb(161,167,182); 
@color_white: #fff;
@color_black: #000;
@color_gray_1: #292828;
@color_gray_2: rgb(192, 189, 189);
@color_gray_3: rgb(241, 236, 236);
@color_blue_1: blue;
@color_blue_2: rgb(84, 135, 236);
@color_blue_3: rgb(191, 205, 235);
@color_blue_4: rgb(234, 237, 241);
@color_green_1: rgb(75, 146, 117);
@color_green_2: rgb(124, 192, 164);
// 通过加class类目
.space-full{
    width: @space_full;
    height: @space_full;
}

// 通过在样式中调用函数，例：.flex-center(row,center,center);
.flex_layout(@direction,@justify_content,@align_items){
    display: flex;
    flex-direction: @direction;
    justify-content: @justify_content;
    align-items: @align_items;
}
.set_linear_bg(){
    background: linear-gradient(to bottom, @color_white 20%, @color_green_1 80%);
}